.page-about {
  --about-red: #E63946;
  --about-blue: #3A86FF;
  --about-yellow: #FFD60A;
  --about-black: #0A0A0A;
  --about-white: #FFFFFF;
  --about-dark-gray: #333533;
  --about-mid-gray: #6C757D;
  --about-light-gray: #F8F9FA;
  position: relative;
  background-color: var(--about-black);
  color: var(--about-white);
  overflow-x: hidden;
}

/* ===== 面包屑 ===== */
.page-about .breadcrumb {
  max-width: 1280px;
  margin: 0 auto;
  padding: 16px 24px 0;
}

.page-about .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  list-style: none;
  padding: 0;
  margin: 0;
  gap: 8px;
  font-size: 0.875rem;
  color: var(--about-mid-gray);
}

.page-about .breadcrumb a {
  color: var(--about-blue);
  text-decoration: none;
}

.page-about .breadcrumb a:hover {
  color: var(--about-white);
  border-bottom: 2px solid var(--about-red);
}

.page-about .breadcrumb ol li + li::before {
  content: "→";
  margin-right: 8px;
  color: var(--about-mid-gray);
}

/* ===== 首屏 分屏 ===== */
.page-about .about-hero {
  display: grid;
  grid-template-columns: 1fr;
  max-width: 1280px;
  margin: 0 auto;
  padding: 40px 24px 0;
  gap: 48px;
  position: relative;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  top: -20px;
  right: -40px;
  width: 400px;
  height: 400px;
  background: linear-gradient(135deg, rgba(230, 57, 70, 0.25), transparent 70%);
  border-radius: 50%;
  z-index: 0;
}

.page-about .about-hero-left {
  position: relative;
  z-index: 1;
}

.page-about .about-hero .exhibit-label {
  display: inline-block;
  background: var(--about-red);
  color: var(--about-white);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  padding: 6px 14px;
  margin-bottom: 24px;
  transform: skewX(-4deg);
  text-transform: uppercase;
}

.page-about .about-hero h1 {
  font-size: clamp(1.9rem, 5.2vw, 3.4rem);
  font-weight: 800;
  line-height: 1.15;
  margin: 0 0 20px;
  letter-spacing: -0.02em;
  transform: skewX(-2deg);
  max-width: 680px;
}

.page-about .about-hero-lead {
  font-size: 1.05rem;
  line-height: 1.7;
  color: #E6E6E6;
  max-width: 560px;
  margin: 0 0 32px;
  border-left: 4px solid var(--about-blue);
  padding-left: 16px;
}

.page-about .about-hero-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.page-about .hero-stat {
  background: linear-gradient(145deg, #1A1A1A, #101010);
  border: 1px solid #2A2A2A;
  padding: 20px 16px;
  position: relative;
  transform: skewX(-3deg);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), border-color 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.page-about .hero-stat:hover {
  transform: skewX(-3deg) translateY(-4px);
  border-color: var(--about-red);
}

.page-about .hero-stat-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 500;
  color: var(--about-red);
  margin-bottom: 4px;
}

.page-about .hero-stat:nth-child(2) .hero-stat-num {
  color: var(--about-blue);
}

.page-about .hero-stat:nth-child(3) .hero-stat-num {
  color: var(--about-yellow);
}

.page-about .hero-stat:nth-child(4) .hero-stat-num {
  color: var(--about-white);
}

.page-about .hero-stat-label {
  font-size: 0.875rem;
  color: #AAAAAA;
  letter-spacing: 0.04em;
}

.page-about .about-hero-right {
  position: relative;
  z-index: 1;
}

.page-about .hero-visual-wrap {
  position: relative;
  transform: skewX(-3deg) rotate(1deg);
  overflow: hidden;
  border: 1px solid #2A2A2A;
  height: auto;
}

.page-about .hero-visual-img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  filter: grayscale(0.8) contrast(1.05);
  transition: filter 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.page-about .hero-visual-wrap:hover .hero-visual-img {
  filter: grayscale(0) contrast(1);
}

.page-about .hero-visual-scan {
  position: absolute;
  top: 0;
  left: -100%;
  width: 60%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.08), transparent);
  animation: about-scan 5s ease-in-out infinite;
  pointer-events: none;
}

@keyframes about-scan {
  0% { left: -100%; }
  60% { left: 120%; }
  100% { left: 120%; }
}

.page-about .hero-visual-caption {
  position: absolute;
  bottom: 16px;
  left: 16px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--about-white);
  background: rgba(10, 10, 10, 0.85);
  padding: 6px 12px;
  border-left: 3px solid var(--about-red);
}

/* ===== 章节通用 ===== */
.page-about .section-pad {
  padding: 72px 24px;
  max-width: 1280px;
  margin: 0 auto;
}

.page-about .section-head {
  margin-bottom: 48px;
  position: relative;
}

.page-about .section-kicker {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--about-red);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.page-about .section-title {
  font-size: clamp(1.6rem, 3.5vw, 2.6rem);
  font-weight: 800;
  line-height: 1.2;
  margin: 0;
  transform: skewX(-2deg);
  max-width: 720px;
}

/* ===== 品牌故事 ===== */
.page-about .about-story {
  position: relative;
}

.page-about .about-story::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: linear-gradient(to bottom, var(--about-red), var(--about-blue), transparent);
  opacity: 0.6;
}

.page-about .story-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.page-about .story-text p {
  font-size: 1rem;
  line-height: 1.75;
  color: #E0E0E0;
  margin: 0 0 16px;
}

.page-about .story-text p:last-child {
  margin-bottom: 0;
}

.page-about .story-visual {
  position: relative;
  transform: skewX(-2deg);
  overflow: hidden;
}

.page-about .story-visual-img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  filter: grayscale(0.6);
}

.page-about .story-visual .speed-lines {
  position: absolute;
  top: 0;
  right: 0;
  width: 100%;
  height: 100%;
  background: repeating-linear-gradient(
    -45deg,
    transparent,
    transparent 10px,
    rgba(230, 57, 70, 0.08) 10px,
    rgba(230, 57, 70, 0.08) 12px
  );
  pointer-events: none;
}

/* ===== 发展历程 ===== */
.page-about .about-journey {
  position: relative;
  background: linear-gradient(180deg, transparent, rgba(58, 134, 255, 0.06) 20%, rgba(58, 134, 255, 0.06) 80%, transparent);
}

.page-about .journey-timeline-card {
  background: rgba(20, 20, 20, 0.9);
  border: 1px solid #2A2A2A;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
  padding: 32px 20px;
  position: relative;
}

.page-about .journey-timeline {
  position: relative;
  display: grid;
  gap: 0;
}

.page-about .journey-timeline::before {
  content: "";
  position: absolute;
  left: 16px;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(to bottom, var(--about-red), var(--about-blue), var(--about-yellow));
  transform: skewX(-4deg);
}

.page-about .timeline-item {
  position: relative;
  padding: 0 0 40px 56px;
}

.page-about .timeline-item:last-child {
  padding-bottom: 8px;
}

.page-about .timeline-item::before {
  content: attr(data-year);
  position: absolute;
  font-family: var(--font-mono);
  color: var(--about-mid-gray);
  font-size: 0.875rem;
  left: 0;
  top: 4px;
}

.page-about .timeline-item-time {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--about-blue);
  margin-bottom: 8px;
}

.page-about .timeline-node {
  position: absolute;
  left: 9px;
  top: 6px;
  width: 14px;
  height: 14px;
  background: var(--about-red);
  transform: rotate(45deg);
  box-shadow: 0 0 12px rgba(230, 57, 70, 0.6);
  z-index: 2;
}

.page-about .timeline-item:nth-child(2) .timeline-node {
  background: var(--about-blue);
  box-shadow: 0 0 12px rgba(58, 134, 255, 0.6);
}

.page-about .timeline-item:nth-child(3) .timeline-node {
  background: var(--about-yellow);
  box-shadow: 0 0 12px rgba(255, 214, 10, 0.6);
}

.page-about .timeline-item:nth-child(4) .timeline-node {
  background: var(--about-white);
  box-shadow: 0 0 12px rgba(255, 255, 255, 0.5);
}

.page-about .timeline-item:nth-child(5) .timeline-node {
  background: var(--about-red);
  box-shadow: 0 0 16px rgba(230, 57, 70, 0.8);
}

.page-about .timeline-item-content {
  background: linear-gradient(145deg, #1A1A1A, #141414);
  border-left: 3px solid var(--about-red);
  padding: 20px;
  transform: skewX(-2deg);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), border-color 0.3s;
}

.page-about .timeline-item:nth-child(2) .timeline-item-content {
  border-left-color: var(--about-blue);
}

.page-about .timeline-item:nth-child(3) .timeline-item-content {
  border-left-color: var(--about-yellow);
}

.page-about .timeline-item:nth-child(4) .timeline-item-content {
  border-left-color: var(--about-white);
}

.page-about .timeline-item:nth-child(5) .timeline-item-content {
  border-left-color: var(--about-red);
}

.page-about .timeline-item-content:hover {
  transform: skewX(-2deg) translateX(6px);
}

.page-about .timeline-item-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin: 0 0 8px;
  letter-spacing: -0.01em;
}

.page-about .timeline-item-text {
  font-size: 0.95rem;
  line-height: 1.7;
  color: #CCCCCC;
  margin: 0;
}

/* ===== 数据与技术 ===== */
.page-about .about-data {
  background: linear-gradient(135deg, rgba(58, 134, 255, 0.06), transparent 40%);
}

.page-about .data-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.page-about .data-card {
  background: linear-gradient(145deg, #1A1A1A, #111);
  border: 1px solid #2A2A2A;
  padding: 28px 24px;
  position: relative;
  overflow: hidden;
  transform: skewX(-2deg);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), border-color 0.3s;
}

.page-about .data-card:hover {
  transform: skewX(-2deg) translateY(-6px);
  border-color: var(--about-blue);
}

.page-about .data-card::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--about-blue), transparent);
  opacity: 0.5;
}

.page-about .data-card-large {
  border-color: rgba(230, 57, 70, 0.4);
}

.page-about .data-card-large::after {
  background: linear-gradient(90deg, var(--about-red), transparent);
}

.page-about .data-card-yellow {
  border-color: rgba(255, 214, 10, 0.3);
}

.page-about .data-card-yellow::after {
  background: linear-gradient(90deg, var(--about-yellow), transparent);
}

.page-about .data-card .tag {
  display: inline-block;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 4px 10px;
  margin-bottom: 16px;
  background: rgba(230, 57, 70, 0.15);
  color: var(--about-red);
  border: 1px solid rgba(230, 57, 70, 0.3);
}

.page-about .data-card .tag-blue {
  background: rgba(58, 134, 255, 0.15);
  color: var(--about-blue);
  border-color: rgba(58, 134, 255, 0.3);
}

.page-about .data-card .tag-blue .tag,
.page-about .data-card-blue .tag {
  background: rgba(58, 134, 255, 0.15);
  color: var(--about-blue);
  border-color: rgba(58, 134, 255, 0.3);
}

.page-about .data-card-number {
  font-family: var(--font-mono);
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 500;
  color: var(--about-white);
  line-height: 1.1;
  margin-bottom: 8px;
}

.page-about .data-card-large .data-card-number {
  color: var(--about-red);
}

.page-about .data-card-yellow .data-card-number {
  color: var(--about-yellow);
}

.page-about .data-card-title {
  font-size: 1rem;
  font-weight: 700;
  margin: 0 0 10px;
  color: var(--about-white);
}

.page-about .data-card-text {
  font-size: 0.925rem;
  line-height: 1.65;
  color: #BBBBBB;
  margin: 0;
}

.page-about .data-visual-card {
  position: relative;
  overflow: hidden;
  grid-column: 1 / -1;
  min-height: 240px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.page-about .data-visual-img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  opacity: 0.85;
}

.page-about .data-visual-caption {
  position: absolute;
  bottom: 16px;
  left: 16px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--about-white);
  background: rgba(10, 10, 10, 0.85);
  padding: 6px 12px;
  border-left: 3px solid var(--about-yellow);
}

/* ===== 资质与荣誉 ===== */
.page-about .about-honors {
  background: linear-gradient(180deg, transparent, rgba(230, 57, 70, 0.05) 30%, rgba(230, 57, 70, 0.02) 70%, transparent);
}

.page-about .honors-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.page-about .honor-card {
  background: rgba(24, 24, 24, 0.9);
  border: 1px solid #2A2A2A;
  padding: 32px 28px;
  position: relative;
  transform: skewX(-2deg);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), border-color 0.3s;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-about .honor-card:hover {
  transform: skewX(-2deg) translateY(-4px);
  border-color: var(--about-yellow);
}

.page-about .honor-card-icon {
  font-size: 1.8rem;
  color: var(--about-red);
  margin-bottom: 8px;
  line-height: 1;
}

.page-about .honor-card:nth-child(2) .honor-card-icon {
  color: var(--about-blue);
}

.page-about .honor-card:nth-child(4) .honor-card-icon {
  color: var(--about-yellow);
}

.page-about .honor-card-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin: 0;
  line-height: 1.35;
}

.page-about .honor-card-text {
  font-size: 0.925rem;
  line-height: 1.65;
  color: #BBBBBB;
  margin: 0;
}

.page-about .honor-card-image {
  padding: 0;
  overflow: hidden;
  background: transparent;
  border-color: rgba(255, 214, 10, 0.2);
}

.page-about .honor-card-img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  filter: grayscale(0.4) contrast(1.05);
}

/* ===== 我们的团队 ===== */
.page-about .about-team {
  background: linear-gradient(90deg, rgba(58, 134, 255, 0.04), transparent);
}

.page-about .team-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
}

.page-about .team-intro-text {
  font-size: 1.05rem;
  line-height: 1.75;
  color: #E0E0E0;
  border-left: 4px solid var(--about-red);
  padding-left: 16px;
  margin: 0 0 32px;
}

.page-about .team-facts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.page-about .team-fact {
  padding: 8px 0;
  border-bottom: 2px solid #2A2A2A;
}

.page-about .team-fact-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.6rem;
  font-weight: 500;
  color: var(--about-blue);
}

.page-about .team-fact-label {
  font-size: 0.875rem;
  color: #999999;
}

.page-about .team-roles {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.page-about .role-card {
  background: linear-gradient(145deg, #1A1A1A, #111);
  border: 1px solid #2A2A2A;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transform: skewX(-2deg);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), border-color 0.3s;
}

.page-about .role-card:hover {
  transform: skewX(-2deg) translateX(6px);
  border-color: var(--about-blue);
}

.page-about .role-icon {
  font-size: 1.4rem;
  color: var(--about-red);
}

.page-about .role-card:nth-child(2) .role-icon {
  color: var(--about-blue);
}

.page-about .role-card:nth-child(3) .role-icon {
  color: var(--about-yellow);
}

.page-about .role-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin: 0;
}

.page-about .role-text {
  font-size: 0.925rem;
  line-height: 1.65;
  color: #BBBBBB;
  margin: 0;
}

/* ===== 信任区块 ===== */
.page-about .about-trust {
  padding: 60px 24px 80px;
}

.page-about .trust-box {
  background: linear-gradient(135deg, rgba(230, 57, 70, 0.1), rgba(58, 134, 255, 0.06));
  border: 1px solid #2A2A2A;
  padding: 40px 32px;
  transform: skewX(-2deg);
  position: relative;
}

.page-about .trust-box::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--about-red), var(--about-blue), var(--about-yellow));
}

.page-about .trust-statement {
  font-size: 1.05rem;
  line-height: 1.75;
  color: #FFFFFF;
  margin: 0 0 32px;
  border-left: 4px solid var(--about-yellow);
  padding-left: 16px;
}

.page-about .trust-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-about .btn {
  display: inline-block;
  padding: 12px 24px;
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  transform: skewX(-4deg);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.3s, background-color 0.3s;
  letter-spacing: 0.02em;
}

.page-about .btn:hover {
  transform: skewX(-4deg) translateY(-3px);
}

.page-about .btn-primary {
  background: var(--about-red);
  color: var(--about-white);
  box-shadow: 0 6px 20px rgba(230, 57, 70, 0.35);
}

.page-about .btn-primary:hover {
  background: #ff4d5a;
  box-shadow: 0 8px 28px rgba(230, 57, 70, 0.5);
}

.page-about .btn-ghost {
  border: 1px solid rgba(255, 255, 255, 0.5);
  color: var(--about-white);
}

.page-about .btn-ghost:hover {
  background: rgba(255, 255, 255, 0.1);
}

.page-about .btn-secondary {
  border: 1px solid var(--about-blue);
  color: var(--about-blue);
}

.page-about .btn-secondary:hover {
  background: rgba(58, 134, 255, 0.15);
}

/* ===== 通用工具类 ===== */
.page-about .tag,
.page-about .tag-red,
.page-about .tag-blue {
  display: inline-block;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 4px 10px;
  background: rgba(230, 57, 70, 0.15);
  color: var(--about-red);
  border: 1px solid rgba(230, 57, 70, 0.3);
}

.page-about .tag-blue {
  background: rgba(58, 134, 255, 0.15);
  color: var(--about-blue);
  border-color: rgba(58, 134, 255, 0.3);
}

.page-about .tag-red {
  background: rgba(230, 57, 70, 0.15);
  color: var(--about-red);
  border-color: rgba(230, 57, 70, 0.3);
}

.page-about .is-hidden {
  display: none !important;
}

.page-about .section-pad {
  padding: 72px 24px;
  max-width: 1280px;
  margin: 0 auto;
}

/* ===== 响应式 ===== */
@media (min-width: 768px) {
  .page-about .about-hero {
    grid-template-columns: 7fr 5fr;
    padding: 56px 32px 0;
    gap: 40px;
  }

  .page-about .about-hero-stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-about .story-grid {
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
  }

  .page-about .journey-timeline-card {
    padding: 44px 36px;
  }

  .page-about .timeline-item {
    padding: 0 0 48px 72px;
  }

  .page-about .data-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-about .data-card-large {
    grid-column: 1 / -1;
  }

  .page-about .data-visual-card {
    grid-column: 1 / -1;
  }

  .page-about .honors-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-about .honor-card-image {
    grid-row: span 2;
  }

  .page-about .team-layout {
    grid-template-columns: 2fr 3fr;
    gap: 48px;
    align-items: start;
  }

  .page-about .team-roles {
    grid-template-columns: 1fr;
  }

  .page-about .trust-links {
    flex-wrap: nowrap;
  }
}

@media (min-width: 1024px) {
  .page-about .about-hero {
    padding: 72px 32px 0;
    gap: 64px;
  }

  .page-about .about-hero h1 {
    font-size: clamp(2.6rem, 5vw, 3.6rem);
  }

  .page-about .section-pad {
    padding: 88px 32px;
  }

  .page-about .data-grid {
    grid-template-columns: repeat(6, 1fr);
  }

  .page-about .data-card-large {
    grid-column: span 3;
  }

  .page-about .data-card {
    grid-column: span 3;
  }

  .page-about .data-card-yellow {
    grid-column: span 3;
  }

  .page-about .data-visual-card {
    grid-column: span 3;
  }

  .page-about .honors-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-about .honor-card-image {
    grid-row: auto;
    grid-column: span 1;
  }

  .page-about .timeline-item {
    padding-right: 40px;
  }

  .page-about .timeline-item-content {
    max-width: 560px;
  }
}

@media (min-width: 1200px) {
  .page-about .data-grid {
    grid-template-columns: repeat(12, 1fr);
  }

  .page-about .data-card-large {
    grid-column: span 4;
  }

  .page-about .data-card {
    grid-column: span 4;
  }

  .page-about .data-card-yellow {
    grid-column: span 4;
  }

  .page-about .data-visual-card {
    grid-column: span 6;
    grid-row: span 2;
  }

  .page-about .data-card {
    grid-column: span 3;
  }

  .page-about .team-roles {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .hero-visual-scan {
    animation: none;
  }

  .page-about .about-hero .hero-stat,
  .page-about .data-card,
  .page-about .timeline-item-content,
  .page-about .role-card,
  .page-about .btn {
    transition: none;
  }
}